Multi parameter structural optimization of cylindrical cone liner based on orthogonal design

DOI:	10.11809/bqzbgcxb2024.02.009
Keywords:	cylindrical cone combination; liner; orthogonal optimization; jet; numerical simulation
Abstract:	In order to improve the stability of the jet formed by cylindrical cone liner, the penetration ability needs to be improved by changing the material of cylindrical liner, the height of cylindrical liner and the top thickness of cylindrical liner were changed by orthogonal optimization design. The optimal scheme combination of the head velocity before fracture, the fracture time and the effective length of the jet forming of cylindrical cone liner was discussed by selecting L 25 (56) orthogonal optimization table to carry on numerical simulation through AUTODYN software. The primary and secondary order of the influence degree of three factors on three indexes are obtained. The results show that the influencing factors of the head velocity before jet fracture are as follows: the height of cylindrical liner, the thickness of the top of material; Influencing factors of jet rupture time: the material and height of cylindrical liner are the same, followed by the top thickness; The influencing factors of effective length of jet are as follows: material height and top thickness of cylindrical liner; Comprehensive analysis shows that scheme A (NICKEL, h=10 mm, b=1.5 mm) and scheme B (NICKEL, h=10 mm, b=2 mm)form a better overall jet.
Published:	2024-02-28
PDF